(27)Institutions that use internal models to estimate the own funds requirements for credit risk with regard to equity exposures typically base their risk assessment on publicly available data, to which all institutions can be presumed to have identical access. Under those circumstances, differences in own funds requirements cannot be justified. In addition, equity exposures held in the non-trading book form a very small component of institutions’ balance sheets. Therefore, to increase the comparability of institutions’ own funds requirements and to simplify the regulatory framework, institutions should calculate their own funds requirements for credit risk with regard to equity exposures using the SA-CR, and the use of the IRB Approach should not be allowed for that purpose.